I have my doubts about this amplifier. Not available until next year?
A Class D amplifier has an efficiency of 85-90% at best.
This amplifier would need to dissipate between 400 watts (best case) and 1500 watts (worse case) in heat.
There is no way that a single rack unit amplifier can dissipate that much heat.
Even with a big blower to keep the chassis cool, there is not enough surface area to dissipate that amount of heat.

I have my doubts about this amplifier. Not available until next year?
A Class D amplifier has an efficiency of 85-90% at best.
This amplifier would need to dissipate between 400 watts (best case) and 1500 watts (worse case) in heat.
There is no way that a single rack unit amplifier can dissipate that much heat.
Even with a big blower to keep the chassis cool, there is not enough surface area to dissipate that amount of heat.

My thoughts exactly....

__________________
Repairs and mods to Real Hi-Fi, guitar amps and P.A. in North East England.

As I informed those PKN amps has soft switching and fancy GaN transisitors so they have losses in most of the operation range as low as 1% in the endstages. It would mean 99% efficiency which is not unrealistics today (however VERY pricey)

I do not know what power supply they have but on other forums some guys who saw the internals mentioned "military technology"

I have my doubts about this amplifier. Not available until next year?
A Class D amplifier has an efficiency of 85-90% at best.
This amplifier would need to dissipate between 400 watts (best case) and 1500 watts (worse case) in heat.
There is no way that a single rack unit amplifier can dissipate that much heat.
Even with a big blower to keep the chassis cool, there is not enough surface area to dissipate that amount of heat.

It would be quite doable with water cooling. Zalman used to sell a water cooler which had a separate radiator. This might make for an interesting DIY kit. (Backing the warranty on electronic equipment which has water cooling installed seems dicey to me.)

I have my doubts about this amplifier. Not available until next year?
A Class D amplifier has an efficiency of 85-90% at best.
This amplifier would need to dissipate between 400 watts (best case) and 1500 watts (worse case) in heat.
There is no way that a single rack unit amplifier can dissipate that much heat.
Even with a big blower to keep the chassis cool, there is not enough surface area to dissipate that amount of heat.

What are you talking about. 1U rack servers are generally spec'ed at ~500W of heat dissipation, so there's no reason an amp couldn't be.